#include <iostream>

using namespace std;

int main() {
    double x;
    cin >> x;

    if (x >= 0 && x <= 25) {
        cout << "Intervalo [0,25]" << endl;
    } else if (x > 25 && x <= 50) {
        cout << "Intervalo (25,50]" << endl;
    } else if (x > 50 && x <= 75) {
        cout << "Intervalo (50,75]" << endl;
    } else if (x > 75 && x <= 100) {
        cout << "Intervalo (75,100]" << endl;
    } else {
        cout << "Fora de intervalo" << endl;
    }

    return 0;
}
